1、*USACE / NAVFAC / AFCESA / NASA UFGS-03 37 23 (November 2009)-Preparing Activity: USACE (CW) SupersedingUFGS-03 37 23 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2009*SECTION TABLE OF CONTENTSDIVISION 03 - CONCRETESECTION 03 37 23ROLLER-COMP
2、ACTED CONCRETE FOR MASS CONCRETE CONSTRUCTION11/09PART 1 GENERAL1.1 UNIT PRICES1.1.1 Roller-Compacted Concrete (RCC) in _1.1.1.1 Payment1.1.1.2 Measurement1.1.1.3 Unit of Measure1.1.2 Dental Concrete1.1.2.1 Payment1.1.2.2 Measurement1.1.2.3 Unit of Measure1.1.3 Bedding Concrete1.1.3.1 Payment1.1.3.2
3、 Measurement1.1.3.3 Unit of Measure1.1.4 Portland Cement1.1.4.1 Payment1.1.4.2 Measurement1.1.4.3 Unit of Measure1.1.5 Pozzolan1.1.5.1 Payment1.1.5.2 Measurement1.1.5.3 Unit of Measure1.1.6 Water-Reducing Admixture (WRA)1.1.6.1 Payment1.1.6.2 Measurement1.1.6.3 Unit of Measure1.1.7 RCC Test Section1
4、.1.7.1 Payment1.1.7.2 Measurement1.1.7.3 Unit of Measure1.2 REFERENCES1.3 SYSTEM DESCRIPTION1.3.1 General Requirements1.3.2 Mixture Proportions and Studies1.3.3 Proportioning ResponsibilitySECTION 03 37 23 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
5、m IHS-,-,-1.3.4 Nominal Maximum Size of Aggregate1.3.5 Consistency of RCC1.3.6 Materials for Mixture-Proportioning Studies1.3.7 Construction Tolerances1.3.7.1 Conventional Concrete Surfaces1.3.7.2 RCC Surfaces1.4 SUBMITTALS1.5 QUALITY ASSURANCE1.5.1 Preconstruction Government Testing1.5.2 Cementitio
6、us Materials and Admixtures1.5.3 Government Testing During Construction1.5.3.1 Aggregates Testing1.5.3.2 Cementitious Materials1.5.3.3 Prequalified Cement Sources1.5.3.4 Prequalified Pozzolan Sources1.5.3.5 Nonprequalified Cement Sources1.5.3.6 Nonprequalified Pozzolan Sources1.5.3.7 Admixtures1.6 D
7、ELIVERY, STORAGE, AND HANDLING1.6.1 Cementitious Materials1.6.1.1 Transportation1.6.1.2 Storage1.6.2 Aggregate Storage1.6.3 Chemical Admixtures1.7 ENVIRONMENTAL REQUIREMENTS1.7.1 Cold-Weather Placement1.7.2 Placing During Rain1.7.3 Hot-Weather PlacementPART 2 PRODUCTS2.1 MATERIALS2.1.1 Cementitious
8、Materials2.1.1.1 Portland Cement2.1.1.2 Pozzolan2.1.1.3 Ground Granulated Blast-Furnace (GGBF) Slag2.1.1.4 Temperature of Cementitious Materials2.1.2 Admixtures2.1.2.1 Water-Reducing Admixture (WRA)2.1.2.2 Air-Entraining Admixture2.1.3 Water2.1.4 Aggregates2.1.4.1 Composition2.1.4.2 Quality2.1.4.3 G
9、rading2.1.4.4 Particle Shape2.1.4.5 Moisture Content2.1.4.6 Commercial Concrete Aggregate Sources2.1.4.7 Government-Furnished Concrete Aggregate Source2.2 PLANT AND EQUIPMENT2.2.1 Concrete Plant2.2.2 Location2.2.3 Bins and Silos2.2.4 Bulk Cement or Pozzolan2.2.5 Batch Plant2.2.6 Continuous Mixing Pl
10、ant(s)2.2.7 Laboratory Areas2.2.8 Mixers2.2.9 Truck MixersSECTION 03 37 23 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2.10 Pugmill Mixers2.2.11 Mixer Uniformity Requirements2.2.12 Sampling Facilities2.2.12.1 Sampling Concrete2.2.12.2 Sam
11、pling Aggregates2.2.13 Transporting and Conveying Equipment2.2.13.1 Trucks2.2.13.2 Belt Conveyors2.2.14 Spreading and Remixing Equipment2.2.15 Compaction Equipment2.2.15.1 Primary Rollers2.2.15.2 Small Vibratory Rollers2.2.15.3 Tampers (Rammers)2.2.15.4 Other Requirements2.2.16 Truck-Mounted Vacuum
12、Pickup System2.2.17 Other Motorized Equipment2.2.18 Nuclear Density Gauge2.2.19 Calibration2.2.20 Vibrators2.2.21 Slipforming EquipmentPART 3 EXECUTION3.1 PREPARATION FOR PLACING3.1.1 Placing Schedule3.1.2 RCC Orientation Session3.1.3 Aggregate Production Schedule3.1.4 RCC Test Section3.1.5 Surface
13、Preparation3.1.5.1 Cleaning3.1.5.2 High-Volume Low-Pressure Washing3.1.5.3 High-Pressure Water Jet3.1.5.4 Wet Sandblasting3.1.5.5 Waste Disposal3.2 PLACING3.2.1 Procedures3.2.2 Bedding Mortar3.2.3 Bedding Concrete3.2.4 Lift Thickness3.2.5 Depositing, Spreading, and Remixing3.2.6 Compaction/Consolida
14、tion3.2.6.1 Theoretical Density (TD) Determination3.2.6.2 Required Compaction Density3.2.6.3 Density Determination of Compacted RCC3.2.6.4 Additional Compaction3.2.6.5 Consolidation of Bedding and Other Conventional Concrete3.2.7 Lift Joints3.2.7.1 Regular Lift-Joint Treatment3.2.7.2 Cold Joints3.2.
15、7.3 Vertical Joints3.2.8 Downstream Face3.2.8.1 Using Sacrificial Concrete3.2.8.2 Using Conventional Concrete3.3 CURING AND PROTECTION3.3.1 Curing3.3.2 Cold-Weather Protection3.3.3 Special Cold-Weather Insulation Protection3.3.4 Hot-Weather Protection3.4 VERTICAL FACINGS FOR RCC CONSTRUCTIONSECTION
16、03 37 23 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.4.1 Form and Cast-in-Place Conventional Concrete3.4.2 Slipformed Facing Elements3.4.2.1 Prequalification of Equipment3.4.2.2 Slipform Operations3.4.2.3 Slipforming - Preparation for Pla
17、cing3.4.2.4 Slipforming - Placing3.4.2.5 Slipforming - Finishing3.4.3 Precast Reinforced Panels3.4.3.1 Leveling Pad3.4.3.2 Alignment3.5 SAFETY BARRIER3.6 CONTRACTION JOINTS3.7 GALLERY3.7.1 Precast Gallery Segments3.7.2 Temporary Forms3.7.3 Noncementing Fill Method3.8 SPILLWAY CONSTRUCTION3.8.1 Spill
18、way Chute and Ogee Section3.8.2 Training Walls3.8.3 Finishing3.8.3.1 General3.8.3.2 Float Finish3.9 TESTS AND INSPECTIONS3.9.1 General3.9.2 Testing and Inspection Requirements3.9.2.1 Fine Aggregate3.9.2.2 Coarse Aggregate3.9.2.3 Quality of Aggregates3.9.2.4 Scales3.9.2.5 Concrete Plant Control3.9.2.
19、6 Concrete3.9.2.7 Field Density3.9.2.8 Inspection Before Placing3.9.2.9 Placing Inspection3.9.2.10 Vibrator Tests3.9.2.11 Curing Inspection3.9.2.12 Cold-Weather and Hot-Weather Protection3.9.2.13 Cold-Weather and Hot-Weather Protection Corrective Action3.9.3 Reports- End of Section Table of Contents
20、 -SECTION 03 37 23 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-03 37 23 (November 2009)-Preparing Activity: USACE (CW) SupersedingUFGS-03 37 23 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferenc
21、es are in agreement with UMRL dated October 2009*SECTION 03 37 23ROLLER-COMPACTED CONCRETE FOR MASS CONCRETE CONSTRUCTION11/09*NOTE: This guide specification covers the requirements for furnishing, hauling, placing, and roller-compacting concrete for mass concrete construction.Edit this guide specif
22、ication for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requirements not required in respective project, whether or not brackets are present.Comments and suggestions on t
23、his guide specification are welcome and should be directed to the technical proponent of the specification. A listing of technical proponents, including their organization designation and telephone number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Requ
24、est (CCR).*PART 1 GENERAL1.1 UNIT PRICES*NOTE: If Section 01 22 00.00 10 MEASUREMENT AND PAYMENT is included in the project specifications, this paragraph title (UNIT PRICES) should be deleted from this section and the remaining appropriately edited subparagraphs below should be inserted into Sectio
25、n 01 22 00.00 10.See appropriate Design Memorandum (DM) for concrete items that are to be measured by the neat line, batch or lump sum.*SECTION 03 37 23 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.1.1 Roller-Compacted Concrete (RCC) in _*
26、NOTE: Repeat this bid item and its respective subparagraphs for each bid item of concrete, renumbering the bid items appropriately.See the Design Memorandum on the use of the optional item on air entrainment.If bedding concrete is to be paid for as a separate bid item, delete the optional words, “Be
27、dding concrete and“, below.*1.1.1.1 PaymentPayment will be made for costs associated with completing the concrete work for roller-compacted concrete placed in the _, including all aggregate , air-entraining admixture, and the use of all equipment and tools to complete the concrete work. However, the
28、se costs will not include the cost of the cement, pozzolan, water-reducing admixture, and embedded parts that are specified to be paid for separately. Bedding concrete and bedding mortar is are incidental to the RCC and will be paid for as part of the RCC within the neat lines. Joint materials, wate
29、rstops, sealants, and bond breakers are incidental to the concrete and will be paid for as part of the RCC. No payment will be made for concrete, as such, that is placed in structures of which payment is made as a lump sum.1.1.1.2 MeasurementRoller-compacted concrete will be measured for payment on
30、the basis of the actual volume of RCC within the pay lines of the structures as indicated on the drawings. Measurement of RCC placed against the sides of any excavation without the use of intervening forms shall be made only within the pay lines of the structure. No deductions shall be made for roun
31、ded or beveled edges, space occupied by metal work, electrical conduits or reinforcing steel, nor for voids or embedded items that are either less than0.14 cubic meter 5 cubic feet in volume or 0.09 square meter 1 square foot in cross section.1.1.1.3 Unit of MeasureUnit of measure: cubic meter yard.
32、1.1.2 Dental Concrete1.1.2.1 PaymentPayment will be made for costs associated with placing dental concrete.1.1.2.2 MeasurementDental concrete will be measured for payment based upon the actual volume of dental concrete placed. The dental concrete volume in cubic meters yardswill be computed from the
33、 mass weight of the material batched at the batch plant using the theoretical mass per meter weight per yard as determined from the design mixture. Any concrete which is wasted or placed in SECTION 03 37 23 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
34、om IHS-,-,-violation of the specifications will not be measured for payment.1.1.2.3 Unit of MeasureUnit of measure: cubic meter yard.1.1.3 Bedding Concrete*NOTE: If bedding concrete is to be paid for as a separate bid item, delete the optional wording “Bedding concrete and“ in Bid Item “(1) Roller-C
35、ompacted Concrete (RCC) in _“, above.*1.1.3.1 PaymentPayment will be made for costs associated with placing bedding concrete.1.1.3.2 MeasurementBedding concrete will be measurement for payment based upon the actual volume of bedding concrete placed. The bedding concrete volume in cubic meters yards
36、will be computed from the mass weight of the material batched at the batch plant using the theoretical mass/meter weight/yard as determined from the design mixture. Any concrete which is wasted or placed in violation of the specifications will not be measured for payment.1.1.3.3 Unit of MeasureUnit
37、of measure: cubic meter yard.1.1.4 Portland Cement1.1.4.1 PaymentPayment will be made for costs associated with portland cement, including the cost of required unloading, hauling, handling, and storage at the site, of all portland cement used in the work for all of the concrete bid items.1.1.4.2 Mea
38、surementPortland cement will be measured for payment based upon the number of tons (metric) (2,000 pounds) of portland cement used, excluding amount specifically excepted, wasted, or used for the convenience of the Contractor. The quantity to be paid for will be determined by multiplying the approve
39、d batch mass in kg/cubic meter weight in pounds per cubic yard of portland cement in each type of concrete used by the number of cubic meters yards of concrete types placed within the pay lines of the structure, as determined in accordance with the concrete bid items, and dividing by 1000 2,000.1.1.
40、4.3 Unit of MeasureUnit of measure: tons (metric) (2,000 pounds).SECTION 03 37 23 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.1.5 Pozzolan1.1.5.1 PaymentPayment will be made for costs associated with pozzolan, including the cost of requir
41、ed unloading, hauling, handling, and storage at the site, of all pozzolan used in the concrete bid items.1.1.5.2 MeasurementPozzolan will be measured for payment based upon the number of cubic meters feet solid volume of pozzolan used unless specifically excepted, wasted, or used for the convenience
42、 of the Contractor. The quantity to be paid for will be determined by multiplying the approved batch mass in kg/cubic meter weight in pounds per cubic yard of pozzolan in each type of concrete used by the number of cubic meters yards of concrete of the types placed within the pay lines of the struct
43、ure, as determined in accordance with the concrete bid items, and dividing by the product of the average specific gravity of the pozzolan multiplied by 1000 kg/cubic meter 62.4 pcf. The average specific gravity shall be the average of the test results for all material accepted during the period cove
44、red by the payment.1.1.5.3 Unit of MeasureUnit of measure: cubic meter foot solid volume.1.1.6 Water-Reducing Admixture (WRA)1.1.6.1 PaymentPayment will be made for costs associated with water-reducing admixture (WRA) at the applicable contract unit price per cubic yard of concrete containing water-
45、reducing admixture. Payment will be made for costs associated with water-reducing admixture (WRA) at the applicable contract unit cost of concrete containing water-reducing admixture for:a. “Bid Item _a., first _ cubic meters yards“.b. “Bid Item _b., all over _ cubic meters yards“.1.1.6.2 MeasurementWater-reducing admixture (WRA) will be measured fo
